[Freeswitch-users] Openzap: Analog FXO disconnect supervision. Is it possible to disconnect on busy? is battery reversal the default? is it power denial?

[Anthony Minessale]

openzap does not have tone based hangup detection support coded into it.
That's why it only works when you use FreeSWITCH to do it in the general
dialplan.

It's simply a feature we have not had demand for yet in OpenZAP. I'm sure we
could add it if we can find the time/resources.



On Mon, Sep 1, 2008 at 7:47 PM, Luis F Urrea <lfurrea at gmail.com> wrote:

> Hi All,
>
> I have been working for quite a while in trying to get Openzap to recognize
> my country specific busy tone in order to hang up an analog FXO channel.
>
> Basically, I am having FXO disconnect supervision issues and I wanted to
> know if it's possible to hang up the FXO by monitoring call progress tones
> so that when there is a busy tone the FXO goes on hook.
>
> I have been tweaking the /etc/openzap/tones.conf based on the ITU.T
> recommendation E.180 for my country, but so far it doesn't even seem that
> the changes I make to the tones.conf file are considered when dealing with
> disconnects from the PSTN side.
>
> I restart FS after every change I make to /etc/openzap/tones.conf with no
> positive results.
>
> The Openzap Wiki states that the "loadzone" parameter in /etc/zaptel.conf
> is not considered when dealing with tones, which makes sense since Openzap
> seems to use libteletone for tone detection and generation.
>
> Here is what I use for busy tone on /etc/openzap/tones.conf:
>
> [us]
>
> generate-busy => v=-7;%(330,330,450)
> detect-busy => 450
>
> Therefore I set openzap.conf.xml as follows:
>
>  <param name="tonegroup" value="us"/>
>
> I was able to check that the busy tone can be detected using the following
> dial plan rule:
>
>    1.      <extension name="Inbound">
>    2.            <condition field="destination_number" expression="^1$">
>    3.              <action application="answer"/>
>    4.              <action application"sleep" data="1000"/>
>    5.              <action application="tone_detect" data="busy 450,0 r
> +100 hangup normal_clearing"/>
>    6.            </condition>
>    7.          </extension>
>
> So that I answer the FXO and hang up when the busy tone is detected. It
> works fine and the FXO port does not get stuck.
>
> Here's the output from the log for the rule above:
>
> http://pastebin.com/f43500bd3
>
> I do not see a reason why settings on tones.conf may not be working?
>
> Is disconnect on busy-detect the default for Openzap? Is it power denial or
> battery reversal?
>
> Does it matter if I select fxsks in /etc/zaptel.conf instead of fxsls?
>
> Your help will be greatly appreciated.
>
> Regards,
>
> Luis
>
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>


-- 
Anthony Minessale II

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